What batch did you get? I have one but can't OC as I need to RMA my ram. I have batch 3012B129 and was in Windows @4ghz for a second at 1.25 Volts (1.3 in bios).

I got batch 3016B246.

I noticed this chip takes a lot less volts at stock than my 920 did (I would say due to the 32nm process). But I was not expecting my volts to be 1.080v (cpuz) while running prime at 3.2GHZ. Temps are all low-mid 30s stock-prime too.

LP: 78c is a little toasty for me. Hoping I can keep my temps a good 8-10c cooler by shooting for 4.0GHZ. Your volts are a lot higher than the stock 1.080v (full load, HT on) than mine is right now. Did you find a lot of extra juice was needed? Did you have to raise the volts for the PLL, IOH, etc?